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  <a name="protectagent_install_0072"></a><a name="protectagent_install_0072"></a>
  <h1 class="topictitle1">备份恢复传输模式（适用于FusionCompute）</h1>
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   <p id="protectagent_install_0072__zh-cn_topic_0000002200031181_p1188117116136"><span id="protectagent_install_0072__zh-cn_topic_0000002200031181_text1143118818121">本产品</span>对FusionCompute虚拟化环境进行保护时，当FusionCompute的生产存储为不同类型的存储时，备份恢复时支持不同的数据传输模式。</p>
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    <h4 class="sectiontitle">LAN-Free模式</h4>
    <p id="protectagent_install_0072__zh-cn_topic_0000002200031181_p799242971711">当FusionCompute的生产存储为华为分布式块存储或eVol存储时，为了获得更高的备份恢复效率，在备份恢复过程中，<span id="protectagent_install_0072__zh-cn_topic_0000002200031181_text879911249489">本产品</span>通过查询目标磁盘在华为分布式存储或eVol存储上的映射信息，将目标卷挂载至客户端所在主机，因此可以避免数据传输速率受到FusionCompute存储局域网络带宽的限制。</p>
    <div class="fignone" id="protectagent_install_0072__zh-cn_topic_0000002200031181_fig129435814502">
     <span class="figcap"><b>图1 </b>LAN-Free模式</span><br><span><img class="eddx" id="protectagent_install_0072__zh-cn_topic_0000002200031181_image149430819504" src="zh-cn_image_0000002164790440.png"></span>
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    <h4 class="sectiontitle">LAN-Base模式</h4>
    <p id="protectagent_install_0072__zh-cn_topic_0000002200031181_p8968143117569">当FusionCompute的生产存储为虚拟化存储（虚拟化本地硬盘、虚拟化SAN存储（IP-SAN和FC-SAN）、虚拟化NAS存储）时，在备份恢复数据过程中，通过客户端所在主机向VRM获取磁盘位置等信息，并与CNA节点建立连接，进行备份恢复数据传输。</p>
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   <div class="fignone" id="protectagent_install_0072__zh-cn_topic_0000002200031181_fig1338134810910">
    <span class="figcap"><b>图2 </b>LAN-Base备份恢复模式</span><br><span><img class="eddx" id="protectagent_install_0072__zh-cn_topic_0000002200031181_image53381748891" src="zh-cn_image_0000002200117045.png"></span>
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